CN103142307A - High-performance water-cooled microwave ablation antenna - Google Patents
High-performance water-cooled microwave ablation antenna Download PDFInfo
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- CN103142307A CN103142307A CN2013101022272A CN201310102227A CN103142307A CN 103142307 A CN103142307 A CN 103142307A CN 2013101022272 A CN2013101022272 A CN 2013101022272A CN 201310102227 A CN201310102227 A CN 201310102227A CN 103142307 A CN103142307 A CN 103142307A
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Abstract
The invention discloses a high-performance water-cooled microwave ablation antenna, comprising a radiation head, a medium pipe, a semi-rigid coaxial electric cable, a needle rod, and a metal outer guide bush sleeved on the tail part of the medium pipe, wherein the semi-rigid coaxial electric cable penetrates through the axis hole of the metal outer guide bush and then is connected with the radiation head, the front end of the metal outer guide bush is sleeved on the medium pipe, the front end of the needle rod is sleeved on the excircle of the tail part of the outer guide bush, and the outer guide bush is in ohmic contact with the outer conductor of the semi-rigid coaxial electric cable and the needle rod. According to the high-performance water-cooled microwave ablation antenna disclosed by the invention, the needle rod and the medium pipe are connected together through the metal outer guide bush, the outer guide bush is in ohmic contact with the outer conductor of the semi-rigid coaxial electric cable and the needle rod, so that the structure precision of the microwave ablation antenna is improved, the boundary condition of the spatial electromagnetic field source of the antenna is not instable and unknown any more, and therefore, the performance and the main property parameters of the ablation antenna tend to be consistent and have certainty, so that the stability, efficiency and reliability of the ablation antenna are further improved.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments of microwave ablation tumor, belong to the medical microwave technical field.
Background technology
Since entering 21 century, the microwave ablation tumor has developed a kind of Main Means that becomes in clinical cancer therapy rapidly, it can implement the original position deactivation to tumor under the guiding of the modern images such as B ultrasonic or CT, and has Wicresoft, accurate, the efficient and little distinguishing feature that has no side effect.In, tumor fast due to microwave ablation tumor programming rate, temperature is high, ablation range is large, be subjected to the outstanding advantages such as carbonization and influence of blood flow be little, particularly bringing into play more and more important effect in the treatment to larger entity tumor at entity tumor, the popularity rate of clinical practice is also more and more higher.
Constantly universal along with the microwave ablation tumor, clinical medicine is also more and more higher to the requirement of the performance of microwave ablation apparatus and quality.At present in existing microwave ablation operating theater instruments, exposed defective and the deficiency of some properties of product and quality aspect:
1 works as microwave source adopting under output high-power and the working condition of long period, exists head to come off and drainage.
The microwave ablation operating theater instruments of 2 same batch of same producers, under the microwave source output microwave power condition identical with the working time, the scale of construction size of ablated tumor is not quite similar.In other words, the shape of their microwave heating effect is not the same with size.
The existence of above-mentioned technical problem certainly will be to the formulation of therapeutic scheme, and the microwave ablation clinical operation causes puzzlement, and the curative effect of microwave ablation tumor is had a greatly reduced quality.Its analysis of causes is as follows:
When the different tumor of microwave ablation different organs, because the structure of its tissue, aspect and cell and the distribution situation etc. of blood flow is more complicated on every side, make it reflection, refraction to microwave, and absorption of microwave etc. is existed very large difference, particularly when serious carbonization or coking occur tissue, defects will be particularly outstanding.Wherein some situation, be also the common problem that adopts clinically the physical means ablation to run into.
For the microwave ablation operating theater instruments, because it is the needle-like microwave antenna of a medical intervener soma, so at first it must possess structure and the characteristic of good microwave antenna, could safety and effectively reach the purpose of ablated tumor.From objective angle, discuss and analyze its characteristic and be:
1 medical and clinical intervene operation, require the radially physical dimension of its apparatus should be as much as possible little, this makes the microwave ablation operating theater instruments be subject to certain restriction at aspects such as structural design, mechanical strength and rigidity, brings certain difficulty also for simultaneously the processing of its part and product and manufacturing.But as long as reasonable in design and process, its product is can satisfy its clinical instructions for use fully, and the head that can solve its operating theater instruments fully comes off and solves the problem of leaking.
2 needle-like microwave ablation operating theater instruments are to belong to typical monopole antenna type.Front end position at the microwave ablation apparatus is the terminal of microwave transmission line, it is the opening position of coaxial cable inner and outer conductor, electromagnetic wave breaks away from field source from here, propagate in tissue (medium) with electromagnetic form, also be referred to as radiation, the electromagnetic wave of common antenna is at spatial transmission.The rate of change that its Electric and magnetic fields alternately excites (frequency) is very high, and the medical microwave operating frequency is that 2450MHz, 915MHz and 433.92MHz (annotate: 1MHz=1 * 10
6Cycle per second).So, melt the residing position of each part and the state at antenna front end position, planform and physical dimension etc., all will become the boundary condition that melts the aerial radiation field source, the power flux-density of electromagnetic radiation and radiation all directions will directly be affected, affect electromagnetic wave at tumor tissues Propagation condition and state, affect microwave energy effect tumor tissues medium and be transformed into heat and the intensification result, namely show as form and the scale of construction of ablated tumor.Therefore, when in the structural design and manufacturing process at microwave ablation antenna front end position, the details of having ignored above-mentioned accuracy has been ignored issuable variables, or inconsiderate close, will make that to melt antenna performance unstable, cause strong uncertain of its external electromagnetic field, make the electromagnetic field distribution parameter at its front end position inconsistent, its result will cause microwave ablation kitchen range (heat effect scope) inconsistent, be the inconsistent of the form of ablated tumor and the scale of construction, will differ greatly.
Summary of the invention
The technical problem to be solved in the present invention is: overcome key technical problem and the mass defect of above-mentioned existing product, propose a kind of high performance water cooling microwave ablation antenna.
high performance water cooling microwave ablation antenna of the present invention, comprise: radiation head, medium tube, half firm coaxial cable, shank, described medium tube is assemblied on the afterbody cylinder of radiation head, described half firm inner conductor has been packed into, and radiation head afterbody cylinder blind hole is interior also fixes, it is characterized in that: comprise that also encapsulation is at the metal outer bush of medium tube afterbody, described half just coaxial cable be connected with radiation head after passing in the axle center hole of metal outer bush, metal outer bush front end sleeve is contained on medium tube, the shank front end sleeve is contained on outer bush afterbody cylindrical, described outer bush and half is the outer conductor of coaxial cable just, shank is Ohmic contact.
The present invention is connected by metal outer bush ohm with the outer conductor of half firm coaxial cable, make and originally melt dwi hastasana and become relatively uniform and accurate structure, in other words, make and originally melt antenna and possessed the boundary condition that geometry is determined relatively, be conducive to find the solution the electromagnetic field distribution that on antenna, field source produces at its surrounding space, and then be conducive to find the solution the problem of radiation field of aerial, namely be conducive to solve the problem of microwave ablation kitchen range (heat effect scope).Simultaneously, be connected with the outer conductor of half firm coaxial cable, ohm of shank by the metal outer bush, namely high-temperature soldering, solved the problem that the antenna front end leaks that melts.And by being fastenedly connected of metal outer bush and medium tube, also solved the problem that the head that melts the antenna front end comes off.
The present invention further improves and is:
1, the medium tube cylindrical is provided with annular groove, and the corresponding position of metal outer bush is out of shape by riveting realizes being fastenedly connected of metal outer bush and medium tube in the groove that is pressed into described medium tube cylindrical.
2, shank and metal outer bush are fixed together by welding.
3, be filled with high temperature adhesive between the cylinder of described medium tube dress and radiation head afterbody.
4, shank and half just has been provided with inner conduit between coaxial cable, and described inner conduit is connected with water inlet tap, forms backwater channel between the inwall of inner conduit and shank, and described backwater channel is connected with faucet.
5, the end section of antenna comprises: shank positioning sleeve, spacer shell, radio frequency contact pin connector and water inlet tap, faucet, Hafu-type handle body, pommel and handle tail, described radio frequency contact pin connector, spacer shell and shank positioning sleeve assembly welding are integrated.
6, the end section of antenna comprises: described shank positioning sleeve is assemblied in the shank afterbody, and to be welded and fixed.
In the present invention, radiation head is copper or the T-shaped cylinder of rustless steel material, it is characterized by: front end is cone connecting cylinder body or multiple edge body connecting cylinder body, make it to have the sharpness that directly penetrates into tissue, its afterbody is cylinder, the axle center is provided with blind hole, and is processed with radial hole and gets through with blind hole on the afterbody cylinder.The technique purpose of two upright openings is to make the high-temperature soldering of inner conductor and radiation head blind hole to have enough bonding strengths.And after the inner wire of coaxial cable is packed the afterbody blind hole of radiation head into, then it is radially applied mechanical force, being aided with the distortion that presses fastening it.In addition, recommend adoption resistor pressure solder technology makes it have more reliable bonding strength.
In the present invention, medium tube is electron ceramic material, cylindrical is step-like tubular cylinder, it is characterized by: be provided with the bipassage ring connected in star on the shoulder cylindrical, one annular groove is for increasing its adhesive strength, one annular groove is that mechanical riveting connects use, to make it having sufficiently high bonding strength with the outer bush assembling
In the present invention, outer bush is copper or the rustless steel material, its inside and outside circle is step-like tubular cylinder, it is characterized by: front end is the thin-walled tubulose, on the shoulder cylindrical that is assembled to medium tube, with respect to the annular groove position on the shoulder cylindrical of medium tube, impose the multiple spot mechanical pressure, make light-wall pipe produce the convex distortion, with the axial float that prevents both with radially wobble, another be coated with high temperature adhesive in advance in the cylindrical shoulder face of cylinder of the inner surface of outer bush and medium tube and annular groove, further be aided with and be fastenedly connected.Root at its shoulder cylindrical is provided with annular groove, and when shank is assemblied in its surface, when adopting high-temperature soldering fixedly, appropriate stannum material can be deposited in groove interior space, to make it having enough weld strengths and air-tightness.Its axle center hole is assemblied on the outer conductor of half firm coaxial cable, the employing high-temperature soldering is fixed, be provided with chamfering at the axle center hole tail end, water conservancy diversion when being used as solder fusing, further make between outer bush and coaxial cable outer conductor have reliable mechanical connection and be electrically connected to, and have good heat conductivity and air-tightness.
In the present invention, shank is stainless steel thin-wall seamless steel pipe, it is characterized by: its front end encapsulation adopts high-temperature soldering to fix it on the afterbody shoulder cylindrical of outer bush.Because high-temperature soldering is shoulder cylindrical matching surface to shank inwall and outer bush, utilize the annular groove that is located at outer bush, firm welding degree, tensile strength and the air-tightness that can further strengthen can keep simultaneously the smoothness, smooth of the butting surface of shank and outer bush in appearance.In addition, to being connected of outer bush and shank, can adopt laser welding technology.
In the present invention, be communicated with water inlet tap by two inner conduits, cooling water can directly inject and melt antenna foremost, utilize shank inwall and half cavity that has just formed between coaxial cable, inner conduit to make backwater channel, realize melting the just best single cycle cooling effect of coaxial cable of the high hot front end of antenna and half.
The technology of high-temperature soldering described in the present invention recommends to select the lead-free high-temperature solder stick, uses constant temperature electric iron, or semi-automatic welding, have enough weld strengths and good conduction, heat conductivility to guarantee it, and without the rosin joint phenomenon, air-tightness is good, and is water-tight, do not seep water.
High temperature adhesive of the present invention, recommend adoption single-component epoxy resin glue, as select domestic 6133C one-component thermostable epoxide-resin glue, its characteristics are that dielectric constant is low, moistureproof and waterproof, and adhesive strength is high and resistance to elevated temperatures is good etc.
the distinctive feature of high performance water cooling microwave ablation antenna of the present invention, most critical is: this microwave ablation antenna position structure, involving in of outer bush part particularly wherein, utilize the position of this part, state, the uniformity of planform and physical dimension and accuracy, and the reliability of assembly technology and quality, make the boundary condition of the external electromagnetic field of this microwave ablation antenna, no longer unsettled, no longer unknown, thereby make the performance and the key property parameter that originally melt antenna reach unanimity and have definitiveness, and then improved the degree of stability that originally melts antenna, high efficiency and reliability.
The scale of construction of high performance water cooling microwave ablation antenna of the present invention to the clinical ablation tumor namely melts the kitchen range scope, reaches concordance and regular Expected Results, established simultaneously the technical foundation of hardware aspect for the intellectuality that advances the microwave ablation tumor.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the front-end architecture schematic diagram of the embodiment of the present invention one.
Fig. 2 is the tail structure schematic diagram of the embodiment of the present invention one.
Fig. 3 is the front-end architecture schematic diagram of the embodiment of the present invention two.
Fig. 4 is the tail structure schematic diagram of the embodiment of the present invention two.
Label in figure is schematically as follows: the 1-radiation head, and the 2-medium tube, 3-half is coaxial cable just, 4-outer bush, 5-shank, the 6-inner conduit, 7-shank positioning sleeve, 8-spacer shell, 9-radio frequency contact pin connector, 10-handle tail, the 11-water inlet tap, 12-faucet, 13-Hafu-type handle body, 14-pommel, 15-water proof cover.
The specific embodiment
Embodiment one
As shown in Figure 1 and Figure 2, the present embodiment high performance water cooling microwave ablation antenna, its composition comprises: radiation head 1, medium tube 2, half firm coaxial cable 3, outer bush 4, shank 5, inner conduit 6, shank positioning sleeve 7, spacer shell 8, radio frequency contact pin connector 9, handle tail 10, water inlet tap 11, faucet 12, Hafu-type handle body 13, pommel 14.
As shown in Figure 1, half just pack into the cylindrical blind hole of afterbody of radiation head 1 of the inner wire of coaxial cable 3 adopt to weld and be aided with and get riveting ready, fixed.Medium tube 2 is assemblied on the afterbody cylinder of radiation head 1, is coated with bonding agent and fixes.Outer bush 4 encapsulations press and are aided with bonding agent with the multiple spot mechanical force and fix on the shoulder cylindrical of medium tube 2, and the axle center hole of outer bush 4 is assemblied on the outer conductor of half firm coaxial cable 3 simultaneously, and to be welded and fixed.Two inner conduits 6 are for being deep into the water inlet pipe of the front end that melts antenna.The front end encapsulation of shank 5 is connected fasteningly on the cylindrical of outer bush with the shoulder cylindrical of outer bush 4 to the endoporus of shank 5, adopt the high-temperature soldering technology.
Be illustrated in figure 2 as the tail structure of microwave ablation antenna.Half just tail end and 9 welding of radio frequency contact pin connector of coaxial cable 3.Spacer shell 6 passes through its port assemblies on the cylindrical of the end of radio frequency contact pin connector 9, be welded and fixed, be welded with water inlet tap 11 and faucet 12 on spacer shell 6, two inner conduits 6 on water inlet tap 11 directly reach the front end that melts antenna, shank positioning sleeve 7 assembles and is welded and fixed by its end face rim of the mouth and spacer shell 8 end cylindricals, the axle center hole of positioning sleeve 7 and shank 5 outer surface welding.So far, consist of the link of the cooling water channel that melts antenna and microwave energy input.
The present embodiment high performance water cooling microwave ablation antenna, assembling process is as follows:
First outer bush 4 is assemblied on the shoulder cylindrical of medium tube 2, smear bonding agent in advance on both composition surfaces, re-use Specific Clamps, imposing the multiple spot mechanical force with respect to the annular groove position of the shoulder cylindrical of medium tube 2 presses, so that outer bush 4 inwalls produce the convex distortion, consist of " the medium tube assembly " that be fastenedly connected.
By two inner conduits 6 of technique length intercepting, the one end is welded in the port of water inlet tap 11, then water inlet tap 11 is distinguished wielding necks on spacer shell 8 together with two inner conduits 6 and faucet 12, form by " water route assembly ".
With half just the inner wire of coaxial cable 3 pack in the cylindrical blind hole of afterbody of radiation head 1, adopt high-temperature soldering and be aided with and get riveting ready, fixed.With " medium tube assembly " along half just the outer conductor surface of coaxial cable 3 push away on the afterbody cylinder that installs to radiation head 1, should be coated with bonding agent at the afterbody periphery of irradiator 1 in advance, to the outer conductor junction of axle center hole tail end and the coaxial cable 3 of outer bush 4, adopt high-temperature soldering to fix.Shank 5 is pushed on the shoulder cylindrical of outer bush 4 along coaxial cable 3 surfaces, adopt the high temperature soldering, emphasis guarantees the welding quality of the matching part of shank 5 front end endoporus and outer bush 4, i.e. enough tensile strength and air-tightness, and both joints must not have tin solder to be spilled over to both butting surfaces.
The assembling of the present embodiment afterbody is followed successively by: the stomidium of the radio frequency contact pin connector 9 of first tail end of half firm coaxial cable 3 being packed into, utilize the fabrication hole of radio frequency contact pin connector, with both inner wire firm welding, then with the stomidium firm welding of outer conductor and the radio frequency contact pin connector 9 of coaxial cable 3.The port cover of spacer shell 8 that then will " water route assembly " installs on the end cylindrical of radio frequency contact pin connector 9, and the employing tin welding is firm.Shift shank positioning sleeve 7 onto " water route assembly " front end along shank 5 again, the port and the cylindrical that utilize both to dock adopt and are welded and fixed it.
In above-mentioned assembling process, all employing solder technology parts must not have the rosin joint phenomenon, and weld seam must not leak or seep water.After finishing the assembling of above-mentioned " melting antenna module ", namely carry out the check of properties of product and technical specification, carry out the requirement of national pharmaceuticals industry standard.
At last, the para-position of will " melting antenna module " is played glue and is fixed after packing in Hafu-type handle body 13, closing second half Hafu-type handle body 13, then glues together pommel 14 and handle tail 10.So far, finish the present embodiment one assembling, carry out the GB2828 sampling inspection, or carry out all events and entirely examine.
Embodiment two
As shown in Figure 3, Figure 4, the present embodiment high performance water cooling microwave ablation antenna, its composition comprises: radiation head 1, medium tube 2, half firm coaxial cable 3, outer bush 4, shank 5, inner conduit 6, shank positioning sleeve 7, water proof cover 15, radio frequency contact pin connector 9, handle tail 10, water inlet tap 11, faucet 12, Hafu-type handle body 13, pommel 14.
The present embodiment is from the difference of embodiment one: the cooling water turnover structure of two embodiment is different.As shown in Figure 3, Figure 4, cooling water of the present invention is to be introduced in the cavity of water proof cover 15 and radio frequency contact pin connector 9 compositions from water inlet tap 11, again through half just space between the outer wall of the surface of coaxial cable 3 and inner conduit 6, be injected into the front end that melts antenna, then flow back in the cavitys that shank positioning sleeve 7 and water proof cover 15 form from space between the inwall of the outer wall of inner conduit 6 and shank 4, flow out finally by faucet 12.
The present embodiment high performance water cooling microwave ablation antenna, assembling process is as follows:
First be same as embodiment one assemble flow, on request, first outer bush 4 and medium tube 2 be assembled into " medium tube assembly ", then water inlet tap 11 is become " water route assembly " with water proof cover 15 para-position assembly weldings respectively with faucet 12.
Then, successively will half firm pack into the cylindrical blind hole of afterbody of radiation head 1 of the inner wire of coaxial cable 3, adopt to weld and be aided with and get riveting ready and fixed.With " medium tube assembly " along half just the outer conductor surface of coaxial cable 3 push away on the afterbody cylinder that is contained in radiation head 1, should be coated with bonding agent at the medium tube outer surface in advance, to the junction of tail end and the coaxial cable 3 of outer bush 4, the employing high-temperature soldering is fixed.Again with inner conduit 6 joint welding on the little cylindrical of afterbody of outer bush.Then, shank 5 is pushed into along coaxial cable 3 surfaces on the shoulder cylindrical of outer bush 4 of " medium tube assembly ", adopt the high temperature soldering technology, emphasis guarantees the welding quality of the matching part of shank 5 front end endoporus and outer bush 4, be enough tensile strength and air-tightness, its outer surface must not have the scolding tin material to overflow.
The present embodiment afterbody assembles and is followed successively by, the stomidium of the radio frequency contact pin connector 9 of first the tail end inner wire of half firm coaxial cable 3 being packed into, and welding is both inner wires well, then the outer conductor of coaxial cable 3 and the stomidium of radio frequency contact pin connector 9 are welded.Then, " water route assembly " is pushed into along shank 5 on the end cylindrical of radio frequency contact pin connector 9, adopts soldering firm.Shift shank positioning sleeve 7 onto " water route assembly " front end along shank 5 again, the port and the cylindrical that utilize both to dock adopt and are welded and fixed it.
Half just tail end and 9 welding of radio frequency contact pin connector of coaxial cable 3, welded inner wire respectively, then the outer conductor of coaxial cable 3 and the stomidium of adapter 9 welded before this.Then " water route assembly " pushed to radio frequency contact pin connector 9 along shank 5, when with after the end cylindrical of adapter 9 docks, the employing tin welding is firm, then to the endoporus of " water route assembly " water proof cover 15 and the fit clearance position of inner conduit 6, adopts equally tin welding to fix.Shift shank positioning sleeve 7 onto " water route assembly " front end along shank 5 at last, in end face rim of the mouth and the cylindrical cooperation place of both docking, the employing tin welding is fixed.
In above-mentioned assembling process, all employing solder technology must not have the rosin joint phenomenon, and weld seam must not leak or seep water.After finishing the assembling of above-mentioned " melting antenna module ", namely carry out the check of properties of product and technical specification, carry out the requirement of national pharmaceuticals industry standard.
At last, the para-position of will " melting antenna module " is played glue and is fixed after packing in Hafu-type handle body 13, covering second half Hafu-type handle body 13, then glues together pommel 14 and handle tail 10.So far, finish the present embodiment one assembling, can carry out the GB2828 sampling inspection, or carry out all events and entirely examine.
Show from exemplar assembling and the test result of embodiment, high performance water cooling microwave ablation antenna of the present invention has more stable characteristics aspect its performance and key property parameter.Show by the load experiment to the Hepar Sus domestica that exsomatizes, reach the basically identical effect of the scale of construction that melts kitchen range.
Believe by further experiment with to the adjustment of antenna structure parameter, high performance water cooling microwave ablation antenna of the present invention is bound to realize its best degree of stability, high efficiency and reliability on its quantitative data and regular basis.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (7)
1. high performance water cooling microwave ablation antenna, comprise: radiation head, medium tube, half firm coaxial cable, shank, described medium tube is assemblied on the afterbody cylinder of radiation head, described half firm inner conductor has been packed into, and radiation head afterbody cylinder blind hole is interior also fixes, it is characterized in that: comprise that also encapsulation is at the metal outer bush of medium tube afterbody, described half just coaxial cable be connected with radiation head after passing in the axle center hole of metal outer bush, metal outer bush front end sleeve is contained on medium tube, the shank front end sleeve is contained on outer bush, described outer bush and half is the outer conductor of coaxial cable just, shank is Ohmic contact.
2. high performance water cooling microwave ablation antenna according to claim 1, it is characterized in that: the medium tube cylindrical is provided with annular groove, and the corresponding position of metal outer bush is out of shape by riveting realizes being fastenedly connected of metal outer bush and medium tube in the groove that is pressed into described medium tube cylindrical.
3. high performance water cooling microwave ablation antenna according to claim 1, it is characterized in that: shank and metal outer bush are fixed together by welding.
4. high performance water cooling microwave ablation antenna according to claim 2, is characterized in that: be filled with high temperature adhesive between the cylinder of described medium tube dress and radiation head afterbody.
5. high performance water cooling microwave ablation antenna according to claim 1, it is characterized in that: shank and half just has been provided with inner conduit between coaxial cable, described inner conduit is connected with water inlet tap, is backwater channel between the outer surface of inner conduit and the inwall of shank, and described backwater channel is connected with faucet.
6. according to claim 1-5 described high performance water cooling microwave ablation of any one antennas, it is characterized in that: the end section of antenna comprises: shank positioning sleeve, spacer shell, radio frequency contact pin connector and water inlet tap, faucet, Hafu-type handle body, pommel and handle tail, described radio frequency contact pin connector, spacer shell and shank positioning sleeve assembly welding are integrated.
7. high performance water cooling microwave ablation antenna according to claim 6, it is characterized in that: the end section of antenna comprises: described shank positioning sleeve is assemblied in the shank afterbody, and to be welded and fixed.
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| CN103536357A (en) * | 2013-11-11 | 2014-01-29 | 杨兴瑞 | Real-time temperature measuring and ablation integrated semi-rigid water cooling microwave ablation antenna |
| CN105816240A (en) * | 2016-05-24 | 2016-08-03 | 赛诺微医疗科技(北京)有限公司 | Antenna assembly for microwave ablation and microwave ablation probe provided with same |
| CN108289712A (en) * | 2015-09-30 | 2018-07-17 | Gem公司 | Electromagnetism tissue ablation device |
| CN109394340A (en) * | 2018-10-26 | 2019-03-01 | 广东百德医疗有限公司 | A kind of high performance water cooling microwave melt needle with microwave power control switch |
| CN111938809A (en) * | 2020-08-19 | 2020-11-17 | 南京诺源医疗器械有限公司 | Water-cooling type ablation needle |
| CN111956323A (en) * | 2020-08-28 | 2020-11-20 | 南京诺源医疗器械有限公司 | Temperature-adjustable ablation needle |
| WO2023087662A1 (en) * | 2021-11-18 | 2023-05-25 | 南京亿高微波系统工程有限公司 | Microwave rounding needle with efficient cooling circulation |
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| CN103536357A (en) * | 2013-11-11 | 2014-01-29 | 杨兴瑞 | Real-time temperature measuring and ablation integrated semi-rigid water cooling microwave ablation antenna |
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| CN109394340A (en) * | 2018-10-26 | 2019-03-01 | 广东百德医疗有限公司 | A kind of high performance water cooling microwave melt needle with microwave power control switch |
| CN111938809A (en) * | 2020-08-19 | 2020-11-17 | 南京诺源医疗器械有限公司 | Water-cooling type ablation needle |
| CN111956323A (en) * | 2020-08-28 | 2020-11-20 | 南京诺源医疗器械有限公司 | Temperature-adjustable ablation needle |
| WO2023087662A1 (en) * | 2021-11-18 | 2023-05-25 | 南京亿高微波系统工程有限公司 | Microwave rounding needle with efficient cooling circulation |
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Addressee: Yang Xingrui Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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Application publication date: 20130612 |